X.520�:�Information technology - Open Systems Interconnection

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X.520�:�Information technology - Open Systems Interconnection - The Directory: Selected attribute types �

Recommendation X.520

In force components
Number	Title	Status
X.520 (10/19) �	Information technology - Open Systems Interconnection - The Directory: Selected attribute types �	In force
X.520 (2019) Amendment 1 (10/24) �	Miscellaneous enhancements �	In force
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Superseded and Withdrawn components
Number	Title	Status
X.520 (11/88) �	The Directory - Selected attribute types �	Superseded
X.520 (11/93) �	Information technology - Open Systems Interconnection - The directory: Selected attribute types �	Superseded
X.520 (08/97) �	Information technology - Open Systems Interconnection - The Directory: Selected attribute types �	Superseded
X.520 (1997) Technical Cor.1 (03/00) �	�	Superseded
X.520 Amendment 1 (03/00) �	Enhancements for the support of ITU-T Recommendation F.510, and of the UTF8 encoding � Never published, consolidated in ITU-T X.520 (02/2001). Only the electronic prepublished version is available on ITU Website	Superseded
X.520 (1997) Technical Cor.2 (02/01) �	�	Superseded
X.520 (1997) Technical Cor.3 (04/02) �	�	Superseded
X.520 (02/01) �	Information technology - Open Systems Interconnection - The Directory: Selected attribute types �	Superseded
X.520 (2001) Technical Cor.1 (04/02) �	�	Superseded
X.520 (2001) Technical Cor.2 (11/05) �	�	Superseded
X.520 (2001) Technical Cor.3 (05/08) �	�	Superseded
X.520 (08/05) �	Information technology - Open Systems Interconnection - The Directory: Selected attribute types �	Superseded
X.520 (2005) Technical Cor.1 (05/08) �	�	Superseded
X.520 (2005) Corrigendum 2 (11/08) �	�	Superseded
X.520 (2005) Corrigendum 3 (02/11) �	�	Superseded
X.520 (2005) Corrigendum 4 (04/12) �	�	Superseded
X.520 (11/08) �	Information technology - Open Systems Interconnection - The Directory: Selected attribute types �	Superseded
X.520 (2008) Corrigendum 1 (02/11) �	�	Superseded
X.520 (2008) Corrigendum 2 (04/12) �	�	Superseded
X.520 (2008) Corrigendum 3 (10/12) �	�	Superseded
X.520 (10/12) �	Information technology - Open Systems Interconnection - The Directory: Selected attribute types �	Superseded
X.520 (2012) Corrigendum 1 (11/14) �	�	Superseded
X.520 (10/16) �	Information technology - Open Systems Interconnection - The Directory: Selected attribute types �	Superseded

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